Pressure-regulating valve.



Patented February 28, 1905.

PATENT OFFICE.

RALPH 1 KIPP, OF ()SSINING, NEW YORK.

PRESSURE-REGULATING VALVE.

SPECIFICATION forming part of Letters Patent No. 783,528, dated February 28, 1905. Application filed June 28, 1904:. Serial No- 214,544.

To all 11/71/0712, it may concern:

Be it known that I, RALPH P. KIPP, a citizen of the United States, residing at Ossining, in the county of l/Vestchester and State of New York. have invented a new and useful Pressure-Regulating Valve, of which the following is a specification.

This invention relates to pressure-regulating valves, and has for its objects to ,produce a coumaratively simple inexpensive device of this character in which the valve will be moved automatically to its seat against the action of the pressure which normally maintains the valve open, thereby rendering the latter noiseless in its operation, one in which the valve will rest smoothly and evenly upon its seat, and one in which as the closing pressure decreases the valve will be moved automatically to open position.

A further object of the invention is to provide means foradjusting the valve to regulate the relative pressures requisite for effecting its opening and closing movements.

To these ends the invention comprises the novel features of construction and combination of parts more fully hereinafter described.

lnithe accompanying drawings, Figure 1 is a vertical section centrally through a pressu rc-regulator embodying my invention. Fig. 2 is a detail view, partly in section, taken on the line 2 2 of Fig. 1 and looking in the direction of the arrow.

Referring to the drawings, 1 designates as a whole the jacket or casing of the device, pro vided with an internal diaphragmchamber 2 and having an inlet-port 3 and an-outlet-port 4c communicating with the valve-chamber 5, divided from the chamber 2 by means of a partition 6, through which is formed a small opening 7, establishing connnunication between the chambers at a point adjacent to the outlet-port 4, there being formed upon the partition 6 between the ports a pair of concentric depending tubular portions or shells 8 and 9. These shells are spaced to produce between them an annular passage 10, affording communication between the ports 3 and4 through the valve-chamber, thelower ends of the shells being terminated ina common plane and constituting a valve-seat 11.

The casing or jacket 1 has a removable upper section 12, afl'ording access to the chamber 2, in which latter there is disposed a flexible diaphragm 13, formed from any appropriate material and secured in place by means of screw-bolts 14, which further serve to attach the section 12 of the jacketiu position.

Extended through and having re'eiprocatory motion in the tubular shell 8 is a valve-stem 15, provided at its normally lower end with a semispherical head 16, upon which the valve 17 rests, the upper end of the stem being extended through a central opening or perforation in the diaphragm 13 and screw-threaded for the reception of a bearing-nut 18, arranged below the diaphragm, and a cap-nut 19 disposed above the latter and acting in conjunction with the nut 18 to clamp the diaphragm between them for securing it fixedly to the stem and preventing leakage of fluid through the stem-receiving opening.

The central projection or cap 20 of the nut 19 serves as a bearing for the lower end of a pressure-spring 21, arranged within the chamber 2 and having bearing at its upper end upon an adjusting member or nut 22, tapped onto an adjusting device 23, which projects through the casing, whereby it may be readily engaged and manipulated. The spring 21 tends to maintain the valve open, and it is apparent that by manipulating the member 23 the nut 22 may be adjusted for regulating the tension of the spring and varying the opening pressure which it will exert upon the valve, it being understood, however, that the spring does not exert sufiicient force of itself to maintain the valve open.

In practice steam or other fluid or liquid under pressure entering through the port 3 will in its passage to theoutlet-port 4: travel through the passage 10 and in pressing upon the upper face of the valve 17 maintain the latter open, the diaphragm 13 under these conditions yielding to permit the opening movement of the valve: As the fluid passes to and through the 1301114; its pressure will be communicated through the passage 7 to the chamber 2 beneath the dia iihragm. \Vheu the pressure beneath the latter exceeds that at the inlet in proportion as the area of the passage between the shells 8 9 is to the area of the diaphragm, the latter will move upward and draw the valve to its seat against the influence of the pressure acting on the valve. Upon an appropriate decrease in the pressure on the exit side of the casing the pressure on the diaphragm will correspondingly decrease, thereby permitting the valve to again open. It is to be particularly noted that in the operation of the device the valve in closing is always moved forcibly against the pressure of the fluid issuing from between the shells, and will therefore be gradual and noiseless in its movements, and that owing to the valve being carried by the semispherical head 16 it will in closing have sufficient movement or play thereon to conform readily to any irregularities which may exist in the valve-seat, thereby insuring accurate seating upon the latter and complete closing of the annular passage 10.

From the foregoing it is apparent that I produce a comparatively simple inexpensive device admirably adapted for the attainment of the ends in view, it being understood that minor changes in the details herein set forth may be resorted to without departing from the spirit of the invention.

Having thus described the invention, what is claimed is 1. In a device of the class described, the combination with a casing having valve and diaphragm chambers, of a partition disposed between said chambers, a pair of tubular shells formed on the partition one surrounding the other and spaced apart to produce a passage, a valve-stem seated in and movable l through the inner shell, the stem being fitted snugly in and guided in its movements by the shell, means for actuating the stem, and a valve carried by the latter and adapted to seat upon the lower ends of the shells for closing the passage.

2. In a device of the class described, the combination with a valve-casing having inlet and outlet ports, a valve-seat within the easing provided with a passage of communication between the ports, a movable valve-stem having a semispherical head, means for operating the stem, and a valve carried by the latter and movably seated upon and having a semispherical socket to receive the semispherical head.

3. In a device of the class described, the combination with a valve-casing having inlet and outlet ports, of a pair of tubular shells provided in the casing, one surrounding the other and spaced apart to produce a passage,

the ends of the shells being disposed in a common plane to constitute a valve-seat, a valvestem seated in and movable through the inner shell, the stem being fitted snugly in and guided in its movements by the shell, means for actuating the stem, and a valve carried by the latter and adapted to close upon the seat for closing the passage.

In testimony that I claim the foregoing as my ownI have hereto affixed my signature in the presence of two witnesses.

RALPH P. KIPP.

\Vitnesses:

WVINFIELD S. SMITH, SYLVESTER W. LYON. 

